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Tim P.
Electronics tutor // Electronics engineer for 6 years
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Russian
TutorMe
Question:

Explain the meaning of word Наглый.

Tim P.

This can be a description of shameless person (human, or animal) which does something on a risk of failure. Наглый person puts his bet on that nobody will have courage to disrupt him in his deed. Closest meaning in English can be found in word : impudent

MATLAB
TutorMe
Question:

How to build a graph in matlab?

Tim P.

You need to have two arrays of data and same length (x,y). Then just plot(x,y)

Electrical Engineering
TutorMe
Question:

What happens with currents in the circuit, when you stop the brush less electrical motor?

Tim P.

Electrical motors from electrical schematic point of view are inductive coils. There is a section in our subject which is called linear electronics, which teaches you about the linear circuits, one of which is inductive coil. Once you close a current supply to the coil, it becomes a current source with current value same as it had when power was supplied. As a current source - if circuit has high impedance, as a result of Ohm's law: I=U/R, voltage level can go up significantly. That's why in motor circuits suppression diodes are added - to deal with inductive spikes. Electrical motors from electrical schematic point of view are inductive coils. There is a section in our subject which is called linear electronics, which teaches you about the linear circuits, one of which is inductive coil. Once you close a current supply to the coil, it becomes a current source with current value same as it had when power was supplied. As a current source - if circuit has high impedance, as a result of Ohm's law: I=U/R, voltage level can go up significantly. That's why in motor circuits suppression diodes are added - to deal with inductive spikes.

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